Does anyone know of a shop where an individual could get an AR receiver Type III Hardcoat Anodized (meaning actually HARD like it should be)? I ask because I recently purchased an upper receiver from an internet vendor and received it today. I won't name the business for now. While it looks beautiful, I took a small file to it on the lower lugs to test it (because I'm just that way), and found that it is SOFT as BUTTER. No hardcoat at all. All my other receivers will file, but still offering a good amount of resistance (you can tell they are hard...one is rock hard), but this one files quite easily.
I have contacted the seller, and am awaiting a response, however, I don't have super high hopes that they will resolve the issue. So, if I am stuck with it, I would like to get it properly hard anodized. Internet searches have not been super helpful, as almost everyone is a "volume" shop, and not really "open to the public".
